The Bronx is New York City's northernmost borough, New York State's southernmost mainland county and the only part of New York City that is almost entirely on the North American mainland, unlike the other four boroughs that are either islands or located on islands.

citation

Wikipedia contributors. (2025, February 13). The Bronx. In Wikipedia, The Free Encyclopedia. Retrieved 16:55, February 13, 2025, from https://en.wikipedia.org/w/index.php?title=The_Bronx&oldid=1275502845

Summation (Wikipedia) In mathematics, summation is the addition of a sequence of numbers, called addends or summands; the result is their sum or total. Beside numbers, other types of values can be summed as well: functions, vectors, matrices, polynomials and, in general, elements of any type of mathematical objects on which an operation denoted “+” is defined.

The Bronx (Wikipedia) The Bronx (/brɒŋks/) is a borough of New York City, coextensive with Bronx County, in the U.S. state of New York. It is south of Westchester County; north and east of the New York City borough of Manhattan, across the Harlem River; and north of the New York City borough of Queens, across the East River. The Bronx is the only New York City borough not primarily located on an island.